connectivity problem

hi !!! friends i m new here can someone please help me out with a problem of mine actually i m using ms sql server 2000 personal edition alongwith jtds drivers in order to connect using core java i m not able to resolve a issue the error at console goes as

It will be better if you give us some more details or code regarding your problem for connectivity,so that we can find where the actualy SQLexception is occuring and what may be the reason for the same.